1011112001222 has 4 divisors (see below), whose sum is σ = 1516668001836. Its totient is φ = 505556000610.

The previous prime is 1011112001219. The next prime is 1011112001279. The reversal of 1011112001222 is 2221002111101.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1011112001197 and 1011112001206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252778000304 + ... + 252778000307.

It is an arithmetic number, because the mean of its divisors is an integer number (379167000459).

Almost surely, 2^{1011112001222} is an apocalyptic number.

1011112001222 is a deficient number, since it is larger than the sum of its proper divisors (505556000614).

1011112001222 is an equidigital number, since it uses as much as digits as its factorization.

1011112001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505556000613.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011112001222 its reverse (2221002111101), we get a palindrome (3232114112323).

The spelling of 1011112001222 in words is "one trillion, eleven billion, one hundred twelve million, one thousand, two hundred twenty-two".